#ifndef __SYS_H
#define __SYS_H	

#ifndef NULL        ((void *) 0L)
#define SYS_CONST   code
#define SYS_RAM     xdata

typedef unsigned char uint8_t;
typedef unsigned int  uint16_t;
typedef unsigned long uint32_t;
typedef char          int8_t;
typedef int           int16_t;
typedef long          int32_t;

#endif
